I was on the M56 yesterday and as I passed under a bridge several icicles were right above the nearside lane.They were 2 to 3 feet long and would cause considerable damage falling from such a great height.
don't know about roads but houses all around us had icicles......We have some 5 and 6 feet long..... I have taken some photos will try and post them but its been a long time placing pictures on here I might need some help again....
I thought they were great hadn't seen any since I was young......fantstic white xmas....